* Jesse Barnes <jesse.barnes@intel.com>
*/
+#include <acpi/button.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
#include "drmP.h"
#include "i915_drv.h"
#include <linux/acpi.h>
-#define I915_LVDS "i915_lvds"
-
-/*
- * the following four scaling options are defined.
- * #define DRM_MODE_SCALE_NON_GPU 0
- * #define DRM_MODE_SCALE_FULLSCREEN 1
- * #define DRM_MODE_SCALE_NO_SCALE 2
- * #define DRM_MODE_SCALE_ASPECT 3
- */
-
/* Private structure for the integrated LVDS support */
struct intel_lvds_priv {
int fitting_mode;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 blc_pwm_ctl, reg;
- if (IS_IGDNG(dev))
+ if (IS_IRONLAKE(dev))
reg = BLC_PWM_CPU_CTL;
else
reg = BLC_PWM_CTL;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
- if (IS_IGDNG(dev))
+ if (IS_IRONLAKE(dev))
reg = BLC_PWM_PCH_CTL2;
else
reg = BLC_PWM_CTL;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 pp_status, ctl_reg, status_reg;
- if (IS_IGDNG(dev)) {
+ if (IS_IRONLAKE(dev)) {
ctl_reg = PCH_PP_CONTROL;
status_reg = PCH_PP_STATUS;
} else {
u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg;
u32 pwm_ctl_reg;
- if (IS_IGDNG(dev)) {
+ if (IS_IRONLAKE(dev)) {
pp_on_reg = PCH_PP_ON_DELAYS;
pp_off_reg = PCH_PP_OFF_DELAYS;
pp_ctl_reg = PCH_PP_CONTROL;
u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg;
u32 pwm_ctl_reg;
- if (IS_IGDNG(dev)) {
+ if (IS_IRONLAKE(dev)) {
pp_on_reg = PCH_PP_ON_DELAYS;
pp_off_reg = PCH_PP_OFF_DELAYS;
pp_ctl_reg = PCH_PP_CONTROL;
goto out;
}
+ /* full screen scale for now */
+ if (IS_IRONLAKE(dev))
+ goto out;
+
/* 965+ wants fuzzy fitting */
if (IS_I965G(dev))
pfit_control |= (intel_crtc->pipe << PFIT_PIPE_SHIFT) |
* to register description and PRM.
* Change the value here to see the borders for debugging
*/
- I915_WRITE(BCLRPAT_A, 0);
- I915_WRITE(BCLRPAT_B, 0);
+ if (!IS_IRONLAKE(dev)) {
+ I915_WRITE(BCLRPAT_A, 0);
+ I915_WRITE(BCLRPAT_B, 0);
+ }
switch (lvds_priv->fitting_mode) {
- case DRM_MODE_SCALE_NO_SCALE:
+ case DRM_MODE_SCALE_CENTER:
/*
* For centered modes, we have to calculate border widths &
* heights and modify the values programmed into the CRTC.
adjusted_mode->crtc_vblank_start + vsync_pos;
/* keep the vsync width constant */
adjusted_mode->crtc_vsync_end =
- adjusted_mode->crtc_vblank_start + vsync_width;
+ adjusted_mode->crtc_vsync_start + vsync_width;
border = 1;
break;
case DRM_MODE_SCALE_ASPECT:
lvds_priv->pfit_control = pfit_control;
lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios;
/*
+ * When there exists the border, it means that the LVDS_BORDR
+ * should be enabled.
+ */
+ if (border)
+ dev_priv->lvds_border_bits |= LVDS_BORDER_ENABLE;
+ else
+ dev_priv->lvds_border_bits &= ~(LVDS_BORDER_ENABLE);
+ /*
* XXX: It would be nice to support lower refresh rates on the
* panels to reduce power consumption, and perhaps match the
* user's requested refresh rate.
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
- if (IS_IGDNG(dev))
+ if (IS_IRONLAKE(dev))
reg = BLC_PWM_CPU_CTL;
else
reg = BLC_PWM_CTL;
* settings.
*/
- /* No panel fitting yet, fixme */
- if (IS_IGDNG(dev))
+ if (IS_IRONLAKE(dev))
return;
/*
I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control);
}
+/* Some lid devices report incorrect lid status, assume they're connected */
+static const struct dmi_system_id bad_lid_status[] = {
+ {
+ .ident = "Aspire One",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"),
+ },
+ },
+ { }
+};
+
/**
* Detect the LVDS connection.
*
- * This always returns CONNECTOR_STATUS_CONNECTED. This connector should only have
- * been set up if the LVDS was actually connected anyway.
+ * Since LVDS doesn't have hotlug, we use the lid as a proxy. Open means
+ * connected and closed means disconnected. We also send hotplug events as
+ * needed, using lid status notification from the input layer.
*/
static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector)
{
- return connector_status_connected;
+ enum drm_connector_status status = connector_status_connected;
+
+ if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))
+ status = connector_status_disconnected;
+
+ return status;
}
/**
return 0;
}
+/*
+ * Lid events. Note the use of 'modeset_on_lid':
+ * - we set it on lid close, and reset it on open
+ * - we use it as a "only once" bit (ie we ignore
+ * duplicate events where it was already properly
+ * set/reset)
+ * - the suspend/resume paths will also set it to
+ * zero, since they restore the mode ("lid open").
+ */
+static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
+ void *unused)
+{
+ struct drm_i915_private *dev_priv =
+ container_of(nb, struct drm_i915_private, lid_notifier);
+ struct drm_device *dev = dev_priv->dev;
+
+ if (!acpi_lid_open()) {
+ dev_priv->modeset_on_lid = 1;
+ return NOTIFY_OK;
+ }
+
+ if (!dev_priv->modeset_on_lid)
+ return NOTIFY_OK;
+
+ dev_priv->modeset_on_lid = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ drm_helper_resume_force_mode(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return NOTIFY_OK;
+}
+
/**
* intel_lvds_destroy - unregister and free LVDS structures
* @connector: connector to free
*/
static void intel_lvds_destroy(struct drm_connector *connector)
{
+ struct drm_device *dev = connector->dev;
struct intel_output *intel_output = to_intel_output(connector);
+ struct drm_i915_private *dev_priv = dev->dev_private;
if (intel_output->ddc_bus)
intel_i2c_destroy(intel_output->ddc_bus);
+ if (dev_priv->lid_notifier.notifier_call)
+ acpi_lid_notifier_unregister(&dev_priv->lid_notifier);
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(connector);
connector->encoder) {
struct drm_crtc *crtc = connector->encoder->crtc;
struct intel_lvds_priv *lvds_priv = intel_output->dev_priv;
- if (value == DRM_MODE_SCALE_NON_GPU) {
- DRM_DEBUG_KMS(I915_LVDS,
- "non_GPU property is unsupported\n");
+ if (value == DRM_MODE_SCALE_NONE) {
+ DRM_DEBUG_KMS("no scaling not supported\n");
return 0;
}
if (lvds_priv->fitting_mode == value) {
static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id)
{
- DRM_DEBUG_KMS(I915_LVDS,
- "Skipping LVDS initialization for %s\n", id->ident);
+ DRM_DEBUG_KMS("Skipping LVDS initialization for %s\n", id->ident);
return 1;
}
{ } /* terminating entry */
};
-#ifdef CONFIG_ACPI
-/*
- * check_lid_device -- check whether @handle is an ACPI LID device.
- * @handle: ACPI device handle
- * @level : depth in the ACPI namespace tree
- * @context: the number of LID device when we find the device
- * @rv: a return value to fill if desired (Not use)
+/**
+ * intel_find_lvds_downclock - find the reduced downclock for LVDS in EDID
+ * @dev: drm device
+ * @connector: LVDS connector
+ *
+ * Find the reduced downclock for LVDS in EDID.
*/
-static acpi_status
-check_lid_device(acpi_handle handle, u32 level, void *context,
- void **return_value)
+static void intel_find_lvds_downclock(struct drm_device *dev,
+ struct drm_connector *connector)
{
- struct acpi_device *acpi_dev;
- int *lid_present = context;
-
- acpi_dev = NULL;
- /* Get the acpi device for device handle */
- if (acpi_bus_get_device(handle, &acpi_dev) || !acpi_dev) {
- /* If there is no ACPI device for handle, return */
- return AE_OK;
- }
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_display_mode *scan, *panel_fixed_mode;
+ int temp_downclock;
- if (!strncmp(acpi_device_hid(acpi_dev), "PNP0C0D", 7))
- *lid_present = 1;
+ panel_fixed_mode = dev_priv->panel_fixed_mode;
+ temp_downclock = panel_fixed_mode->clock;
- return AE_OK;
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(scan, &connector->probed_modes, head) {
+ /*
+ * If one mode has the same resolution with the fixed_panel
+ * mode while they have the different refresh rate, it means
+ * that the reduced downclock is found for the LVDS. In such
+ * case we can set the different FPx0/1 to dynamically select
+ * between low and high frequency.
+ */
+ if (scan->hdisplay == panel_fixed_mode->hdisplay &&
+ scan->hsync_start == panel_fixed_mode->hsync_start &&
+ scan->hsync_end == panel_fixed_mode->hsync_end &&
+ scan->htotal == panel_fixed_mode->htotal &&
+ scan->vdisplay == panel_fixed_mode->vdisplay &&
+ scan->vsync_start == panel_fixed_mode->vsync_start &&
+ scan->vsync_end == panel_fixed_mode->vsync_end &&
+ scan->vtotal == panel_fixed_mode->vtotal) {
+ if (scan->clock < temp_downclock) {
+ /*
+ * The downclock is already found. But we
+ * expect to find the lower downclock.
+ */
+ temp_downclock = scan->clock;
+ }
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+ if (temp_downclock < panel_fixed_mode->clock) {
+ /* We found the downclock for LVDS. */
+ dev_priv->lvds_downclock_avail = 1;
+ dev_priv->lvds_downclock = temp_downclock;
+ DRM_DEBUG_KMS("LVDS downclock is found in EDID. "
+ "Normal clock %dKhz, downclock %dKhz\n",
+ panel_fixed_mode->clock, temp_downclock);
+ }
+ return;
}
-/**
- * check whether there exists the ACPI LID device by enumerating the ACPI
- * device tree.
+/*
+ * Enumerate the child dev array parsed from VBT to check whether
+ * the LVDS is present.
+ * If it is present, return 1.
+ * If it is not present, return false.
+ * If no child dev is parsed from VBT, it assumes that the LVDS is present.
+ * Note: The addin_offset should also be checked for LVDS panel.
+ * Only when it is non-zero, it is assumed that it is present.
*/
-static int intel_lid_present(void)
+static int lvds_is_present_in_vbt(struct drm_device *dev)
{
- int lid_present = 0;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct child_device_config *p_child;
+ int i, ret;
- if (acpi_disabled) {
- /* If ACPI is disabled, there is no ACPI device tree to
- * check, so assume the LID device would have been present.
- */
+ if (!dev_priv->child_dev_num)
return 1;
- }
- acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- check_lid_device, &lid_present, NULL);
+ ret = 0;
+ for (i = 0; i < dev_priv->child_dev_num; i++) {
+ p_child = dev_priv->child_dev + i;
+ /*
+ * If the device type is not LFP, continue.
+ * If the device type is 0x22, it is also regarded as LFP.
+ */
+ if (p_child->device_type != DEVICE_TYPE_INT_LFP &&
+ p_child->device_type != DEVICE_TYPE_LFP)
+ continue;
- return lid_present;
-}
-#else
-static int intel_lid_present(void)
-{
- /* In the absence of ACPI built in, assume that the LID device would
- * have been present.
- */
- return 1;
+ /* The addin_offset should be checked. Only when it is
+ * non-zero, it is regarded as present.
+ */
+ if (p_child->addin_offset) {
+ ret = 1;
+ break;
+ }
+ }
+ return ret;
}
-#endif
/**
* intel_lvds_init - setup LVDS connectors on this device
if (dmi_check_system(intel_no_lvds))
return;
- /* Assume that any device without an ACPI LID device also doesn't
- * have an integrated LVDS. We would be better off parsing the BIOS
- * to get a reliable indicator, but that code isn't written yet.
- *
- * In the case of all-in-one desktops using LVDS that we've seen,
- * they're using SDVO LVDS.
- */
- if (!intel_lid_present())
+ if (!lvds_is_present_in_vbt(dev)) {
+ DRM_DEBUG_KMS("LVDS is not present in VBT\n");
return;
+ }
- if (IS_IGDNG(dev)) {
+ if (IS_IRONLAKE(dev)) {
if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0)
return;
if (dev_priv->edp_support) {
- DRM_DEBUG("disable LVDS for eDP support\n");
+ DRM_DEBUG_KMS("disable LVDS for eDP support\n");
return;
}
gpio = PCH_GPIOC;
dev_priv->panel_fixed_mode =
drm_mode_duplicate(dev, scan);
mutex_unlock(&dev->mode_config.mutex);
+ intel_find_lvds_downclock(dev, connector);
goto out;
}
mutex_unlock(&dev->mode_config.mutex);
* correct mode.
*/
- /* IGDNG: FIXME if still fail, not try pipe mode now */
- if (IS_IGDNG(dev))
+ /* Ironlake: FIXME if still fail, not try pipe mode now */
+ if (IS_IRONLAKE(dev))
goto failed;
lvds = I915_READ(LVDS);
goto failed;
out:
- if (IS_IGDNG(dev)) {
+ if (IS_IRONLAKE(dev)) {
u32 pwm;
/* make sure PWM is enabled */
pwm = I915_READ(BLC_PWM_CPU_CTL2);
pwm |= PWM_PCH_ENABLE;
I915_WRITE(BLC_PWM_PCH_CTL1, pwm);
}
+ dev_priv->lid_notifier.notifier_call = intel_lid_notify;
+ if (acpi_lid_notifier_register(&dev_priv->lid_notifier)) {
+ DRM_DEBUG_KMS("lid notifier registration failed\n");
+ dev_priv->lid_notifier.notifier_call = NULL;
+ }
drm_sysfs_connector_add(connector);
return;
failed:
- DRM_DEBUG_KMS(I915_LVDS, "No LVDS modes found, disabling.\n");
+ DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
if (intel_output->ddc_bus)
intel_i2c_destroy(intel_output->ddc_bus);
drm_connector_cleanup(connector);
+ drm_encoder_cleanup(encoder);
kfree(intel_output);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff